#!/usr/bin/perl
-
+#
+# Copyright (C) 1999 Jonathan St-André
+# Copyright (C) 1999 Hugo Villeneuve <hugo@hugovil.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
open INST_DEF, ">instructions_8051.h" or die "Error creating <instructions_8051.h> : $!\n";
open INST_IMP, ">instructions_8051.c" or die "Error creating <instructions_8051.c> : $!\n";
open OPCODELST, "opcodes.lst" or die "Error opening <opcodes.lst> : $!\n";
open DISASM_H, ">disasm.h" or die "Error creating <disasm.h> : $!\n";
-print INST_IMP "/* instructions_8051.c */\n\n\n";
-print INST_IMP "/* Do not modify this file directly, as it was created by opcode2c.pl\n";
-print INST_IMP " * Any modifications made directly to this file will be lost. */\n\n\n";
+# Header for instructions_8051.c
+print INST_IMP "/*\n";
+print INST_IMP " * instructions_8051.c\n";
+print INST_IMP " *\n";
+print INST_IMP " * Do not modify this file directly, as it was created by opcode2c.pl\n";
+print INST_IMP " * Any modifications made directly to this file will be lost.\n";
+print INST_IMP " *\n";
+print INST_IMP " * Copyright (C) 1999 Jonathan St-André\n";
+print INST_IMP " * Copyright (C) 1999 Hugo Villeneuve <hugo@hugovil.com>\n";
+print INST_IMP " *\n";
+print INST_IMP " * This program is free software; you can redistribute it and/or modify\n";
+print INST_IMP " * it under the terms of the GNU General Public License as published by\n";
+print INST_IMP " * the Free Software Foundation; either version 2 of the License, or\n";
+print INST_IMP " * (at your option) any later version.\n";
+print INST_IMP " *\n";
+print INST_IMP " * This program is distributed in the hope that it will be useful,\n";
+print INST_IMP " * but WITHOUT ANY WARRANTY; without even the implied warranty of\n";
+print INST_IMP " * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n";
+print INST_IMP " * GNU General Public License for more details.\n";
+print INST_IMP " *\n";
+print INST_IMP " * You should have received a copy of the GNU General Public License\n";
+print INST_IMP " * along with this program; if not, write to the Free Software\n";
+print INST_IMP " * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.\n";
+print INST_IMP "*/\n\n";
print INST_IMP "/* Define only here, for not having extern scope on local variables. */\n";
print INST_IMP "#define INSTRUCTIONS_8051_M 1\n\n\n";
print INST_IMP "#include \"reg8051.h\"\n";
print INST_IMP "#include \"cpu8051.h\"\n";
print INST_IMP "#include \"memory.h\"\n";
print INST_IMP "#include \"instructions_8051.h\"\n\n\n";
-print INST_IMP "extern int ActivePriority;\n";
-print INST_IMP "extern unsigned int PC;\n\n\n";
-print DISASM_H "/* disasm.h */\n\n\n";
-print DISASM_H "/* Do not modify this file directly, as it was created by opcode2c.pl\n";
-print DISASM_H " * Any modifications made directly to this file will be lost. */\n\n\n";
+# Header for disasm.h
+print DISASM_H "/*\n";
+print DISASM_H " * disasm.h\n";
+print DISASM_H " *\n";
+print DISASM_H " * Do not modify this file directly, as it was created by opcode2c.pl\n";
+print DISASM_H " * Any modifications made directly to this file will be lost.\n";
+print DISASM_H " *\n";
+print DISASM_H " * Copyright (C) 1999 Jonathan St-André\n";
+print DISASM_H " * Copyright (C) 1999 Hugo Villeneuve <hugo@hugovil.com>\n";
+print DISASM_H " *\n";
+print DISASM_H " * This program is free software; you can redistribute it and/or modify\n";
+print DISASM_H " * it under the terms of the GNU General Public License as published by\n";
+print DISASM_H " * the Free Software Foundation; either version 2 of the License, or\n";
+print DISASM_H " * (at your option) any later version.\n";
+print DISASM_H " *\n";
+print DISASM_H " * This program is distributed in the hope that it will be useful,\n";
+print DISASM_H " * but WITHOUT ANY WARRANTY; without even the implied warranty of\n";
+print DISASM_H " * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n";
+print DISASM_H " * GNU General Public License for more details.\n";
+print DISASM_H " *\n";
+print DISASM_H " * You should have received a copy of the GNU General Public License\n";
+print DISASM_H " * along with this program; if not, write to the Free Software\n";
+print DISASM_H " * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.\n";
+print DISASM_H "*/\n\n";
print DISASM_H "#ifndef DISASM_H\n";
-print DISASM_H "#define DISASM_H 1\n\n\n";
-
+print DISASM_H "#define DISASM_H 1\n\n";
$nbinst=0;
$nbaddr=0;
$instargs[($instnumb << 2) + $i + 1]=$argstypes{$argslist[$i]};
}
}
-
+
if (not exists $insttext{$wordlist[2]}) {
$insttext[$nbinst]=$wordlist[2];
$insttext{$wordlist[2]}=$nbinst++;
$instnumb++;
}
# ------------------------------------------------------------------------------
-print DISASM_H "// For all 256 opcodes, the value in this table gives the instruction type\n";
-print DISASM_H "// ex.: MOV, INC, CLR, CPL,...\n";
-print DISASM_H "// To know what is the instruction type, use the number as an offset in the InstTextTbl[]\n";
+print DISASM_H "/*\n";
+print DISASM_H " * For all 256 opcodes, the value in this table gives the instruction type\n";
+print DISASM_H " * ex.: MOV, INC, CLR, CPL,...\n";
+print DISASM_H " * To know what is the instruction type, use\n";
+print DISASM_H " * the number as an offset in the InstTextTbl[]\n";
+print DISASM_H " */\n";
print DISASM_H "static int InstTypesTbl[] = {\n";
for($i=0;$i<256;$i++) {
print DISASM_H " $insttype[$i]";
if (($i+1) % 16 == 0) { print DISASM_H "\n"; }
}
print DISASM_H "};\n";
-print DISASM_H "\n\n";
+print DISASM_H "\n";
# ------------------------------------------------------------------------------
-print DISASM_H "// Size(in bytes) of each instruction (offset in table is instruction opcode)\n";
+print DISASM_H "/* Size(in bytes) of each instruction (offset in table is instruction opcode) */\n";
print DISASM_H "static int InstSizesTbl[] = {\n";
for($i=0;$i<256;$i++) {
print DISASM_H " $nbbytes[$i]";
if (($i+1) % 16 == 0) { print DISASM_H "\n"; }
}
print DISASM_H "};\n";
-print DISASM_H "\n\n";
+print DISASM_H "\n";
# ------------------------------------------------------------------------------
-print DISASM_H "// List of instructions types referenced by InstTypesTbl[]\n";
+print DISASM_H "/* List of instructions types referenced by InstTypesTbl[] */\n";
$nbelement=@insttext;
print DISASM_H "\#define InstTextTblLength $nbelement\n";
$elementnb=0;
print DISASM_H "\n";
}
print DISASM_H "};\n";
-print DISASM_H "\n\n";
+print DISASM_H "\n";
# ------------------------------------------------------------------------------
-print DISASM_H "// Table describing all arguments types of an instruction\n";
-print DISASM_H "// The table is indexed InstArgTbl[ opcode * 4]\n";
-print DISASM_H "// InstArgTbl[opcode*4 + 1] gives the number of arguments the instruction has\n";
-print DISASM_H "// InstArgTbl[opcode*4 + i] for i=1,2 and 3 give the type of each argument\n";
-print DISASM_H "// for most instructions, the 3rd argument isn't used\n";
-print DISASM_H "// the argument type is referecing to ArgsTextTbl[]\n";
+print DISASM_H "/*\n";
+print DISASM_H " * Table describing all arguments types of an instruction\n";
+print DISASM_H " * The table is indexed InstArgTbl[ opcode * 4]\n";
+print DISASM_H " * InstArgTbl[opcode*4 + 1] gives the number of arguments the instruction has\n";
+print DISASM_H " * InstArgTbl[opcode*4 + i] for i=1,2 and 3 give the type of each argument\n";
+print DISASM_H " * for most instructions, the 3rd argument isn't used\n";
+print DISASM_H " * the argument type is referecing to ArgsTextTbl[]\n";
+print DISASM_H " */\n";
print DISASM_H "\#define InstArgTblLength 256\n";
print DISASM_H "static int InstArgTbl[] = {\n";
for($i=0;$i<1024;$i++) {
if (($i+1) % 16 == 0) { print DISASM_H "\n"; }
}
print DISASM_H "};\n";
-print DISASM_H "\n\n";
+print DISASM_H "\n";
# ------------------------------------------------------------------------------
-print DISASM_H "// List all types of arguments available to instructions\n";
-print DISASM_H "// Referenced by InstArgsTbl[]\n";
+print DISASM_H "/*\n";
+print DISASM_H " * List all types of arguments available to instructions\n";
+print DISASM_H " * Referenced by InstArgsTbl[]\n";
+print DISASM_H " */\n";
$nbelement=@argstypes;
print DISASM_H "\#define ArgsTextTblLength $nbelement\n";
$elementnb=0;
print DISASM_H "\n";
}
print DISASM_H "};\n";
-print DISASM_H "\n\n";
+print DISASM_H "\n";
# ------------------------------------------------------------------------------
for ($i=0 ; $i< 256; $i++) {
print INST_IMP " * Instruction \"$a_instruction[$i]\" takes $a_cycles[$i] cycle(s) and $a_bytes[$i] byte(s).\n";
print INST_IMP " ","*"x76,"/\n";
print INST_IMP "int\n";
- print INST_IMP "cpu8051_OP_$a_opcodehex[$i]( void )\n";
-# TEST hugo new...
-# print INST_DEF "int OP_$a_opcodehex[$i]( );\n";
+ print INST_IMP "cpu8051_OP_$a_opcodehex[$i](void)\n";
print INST_IMP "{\n";
if( $i == 0x85 ) {
# Cas particulier pour MOV direct,direct -> src et dest sont inverses dans la memoire
- print INST_IMP " unsigned char srcaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP " unsigned char srcaddr = memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
print INST_IMP " unsigned char source = cpu8051_ReadD( srcaddr );\n";
- print INST_IMP " unsigned char destaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP " unsigned char destaddr = memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
print INST_IMP " unsigned char destination = cpu8051_ReadD( destaddr );\n";
print INST_IMP " destination = source;\n";
print INST_IMP " cpu8051_WriteD( destaddr, destination );\n";
if ($instargs[$i*4] > 0) {
$op_destination=$instargs[$i*4+1];
if ($op_destination == 0) { # addr11
- print INST_IMP " unsigned int addr11 = ( ( memory_read8( PGM_MEM_ID, PC - 1 ) << 3 ) & 0xF00 ) + memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP " unsigned int addr11 = ( ( memory_read8( PGM_MEM_ID, cpu8051.pc - 1 ) << 3 ) & 0xF00 ) + memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
}
if ($op_destination == 1) { # addr16
- print INST_IMP "unsigned int addr16 = ( memory_read8( PGM_MEM_ID, PC++ ) << 8 );\n";
- print INST_IMP "addr16 += memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned int addr16 = ( memory_read8( PGM_MEM_ID, cpu8051.pc++ ) << 8 );\n";
+ print INST_IMP "addr16 += memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
}
if ($op_destination == 2) { # A
print INST_IMP "unsigned char destination = cpu8051_ReadD( _ACC_ );\n";
}
if ($op_destination == 3) { # direct
- print INST_IMP "unsigned char destaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char destaddr = memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
print INST_IMP "unsigned char destination = cpu8051_ReadD( destaddr );\n";
}
if ($op_destination == 4) { # @R0
if ($op_destination == 5) { # @R1
print INST_IMP "unsigned char destination = cpu8051_ReadI ( cpu8051_ReadD( BANKPSW + _R1_ ) );\n";
}
-
+
if ($op_destination == 6) { # R0
print INST_IMP "unsigned char destination = cpu8051_ReadD( BANKPSW + _R0_ );\n";
}
print INST_IMP "unsigned char destination = cpu8051_ReadD( BANKPSW + _R7_ );\n";
}
if ($op_destination == 14) { # bitaddr
- print INST_IMP "unsigned char destination, dstbitaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char destination, dstbitaddr = memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
print INST_IMP "destination = cpu8051_ReadB( dstbitaddr );\n";
}
if ($op_destination == 15) { # reladdr
- print INST_IMP "PC++;\n";
- print INST_IMP "unsigned int destination = ( ( memory_read8( PGM_MEM_ID, PC - 1 ) + PC ) & 0xFF ) + ( PC & 0xFF00 );\n";
+ print INST_IMP "cpu8051.pc++;\n";
+ print INST_IMP "unsigned int destination = ((char) memory_read8(PGM_MEM_ID, cpu8051.pc - 1)) + cpu8051.pc;\n";
}
if ($op_destination == 16) { # #data
- print INST_IMP "unsigned char destination = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char destination = memory_read8( PGM_MEM_ID, cpu8051.pc++ );\n";
}
if ($op_destination == 17) { # C
print INST_IMP "unsigned char destination = ( cpu8051_ReadD( _PSW_ ) >> 7 );\n";
print INST_IMP "unsigned int destination = ( cpu8051_ReadD( _DPTRHIGH_ ) << 8 ) + cpu8051_ReadD( _DPTRLOW_ );\n";
}
if ($op_destination == 22) { # #data16
- print INST_IMP "unsigned char destination = ( memory_read8( PGM_MEM_ID, PC++ ) << 8 );\n";
- print INST_IMP "destination += memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char destination = ( memory_read8( PGM_MEM_ID, (cpu8051.pc)++ ) << 8 );\n";
+ print INST_IMP "destination += memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
}
if ($op_destination == 23) { # /bitaddr
- print INST_IMP "unsigned char destination, dstbitaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char destination, dstbitaddr = memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
print INST_IMP "destination = ( cpu8051_ReadB( dstbitaddr ) ^ 1 );\n";
}
if ($op_destination == 24) { # @DPTR
if ($instargs[$i*4] > 1) {
$op_source=$instargs[$i*4+2];
if ($op_source == 0) { # addr11
- print INST_IMP "unsigned int addr11 = ( ( memory_read8( PGM_MEM_ID, PC - 1 ) << 3 ) & 0xF00 ) + memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned int addr11 = ( ( memory_read8( PGM_MEM_ID, cpu8051.pc - 1 ) << 3 ) & 0xF00 ) + memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
}
if ($op_source == 1) { # addr16
- print INST_IMP "unsigned int addr16 = ( memory_read8( PGM_MEM_ID, PC++ ) << 8 );\n";
- print INST_IMP "addr16 += memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned int addr16 = ( memory_read8( PGM_MEM_ID, (cpu8051.pc)++ ) << 8 );\n";
+ print INST_IMP "addr16 += memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
}
if ($op_source == 2) { # A
print INST_IMP "unsigned char source = cpu8051_ReadD( _ACC_ );\n";
}
if ($op_source == 3) { # direct
- print INST_IMP "unsigned char srcaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char srcaddr = memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
print INST_IMP "unsigned char source = cpu8051_ReadD( srcaddr );\n";
}
if ($op_source == 4) { # @R0
}
if ($op_source == 14) { # bitaddr
- print INST_IMP "unsigned char source, srcbitaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char source, srcbitaddr = memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
print INST_IMP "source = cpu8051_ReadB( srcbitaddr );\n";
}
if ($op_source == 15) { # reladdr
- print INST_IMP "PC++;\n";
- print INST_IMP "unsigned int source = ( ( memory_read8( PGM_MEM_ID, PC - 1 ) + PC ) & 0xFF ) + ( PC & 0xFF00 );\n";
+ print INST_IMP "(cpu8051.pc)++;\n";
+ print INST_IMP "unsigned int source = ((char) memory_read8(PGM_MEM_ID, cpu8051.pc - 1)) + cpu8051.pc;\n";
}
if ($op_source == 16) { # #data
- print INST_IMP "unsigned char source = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char source = memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
}
if ($op_source == 17) { # C
print INST_IMP "unsigned char source = ( cpu8051_ReadD( _PSW_ ) >> 7 );\n";
print INST_IMP "unsigned char source = memory_read8( PGM_MEM_ID, cpu8051_ReadD( _ACC_ ) + cpu8051_ReadD( _DPTRLOW_ ) + ( cpu8051_ReadD( _DPTRHIGH_ ) << 8 ) );\n";
}
if ($op_source == 19) { # @A+PC
- print INST_IMP "unsigned char source = memory_read8( PGM_MEM_ID, cpu8051_ReadD( _ACC_ ) + ( ++PC ) );\n";
+ print INST_IMP "unsigned char source = memory_read8( PGM_MEM_ID, cpu8051_ReadD( _ACC_ ) + ( ++cpu8051.pc ) );\n";
}
if ($op_source == 21) { # DPTR
print INST_IMP "unsigned int source = ( cpu8051_ReadD( _DPTRHIGH_ ) << 8 ) + cpu8051_ReadD( _DPTRLOW_ );\n";
}
if ($op_source == 22) { # #data16
- print INST_IMP "unsigned char source = ( memory_read8( PGM_MEM_ID, PC++ ) << 8 );\n";
- print INST_IMP "source += memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char source = ( memory_read8( PGM_MEM_ID, (cpu8051.pc)++ ) << 8 );\n";
+ print INST_IMP "source += memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
}
if ($op_source == 23) { # /bitaddr
- print INST_IMP "unsigned char source, srcbitaddr = memory_read8( PGM_MEM_ID, PC++ );\n";
+ print INST_IMP "unsigned char source, srcbitaddr = memory_read8( PGM_MEM_ID, (cpu8051.pc)++ );\n";
print INST_IMP "source = ( cpu8051_ReadB( srcbitaddr ) ^ 1 );\n";
}
if ($op_source == 24) { # @DPTR
# JBC
if ($insttype[$i] == 5) {
- print INST_IMP "if ( destination == 1 ) { PC = source; destination = 0; }\n";
+ print INST_IMP "if ( destination == 1 ) { cpu8051.pc = source; destination = 0; }\n";
}
# ACALL
if ($insttype[$i] == 6) {
print INST_IMP "unsigned char SP = cpu8051_ReadD( _SP_ );\n";
- print INST_IMP "cpu8051_WriteI( ++SP, ( PC & 0x00FF ) );\n";
- print INST_IMP "cpu8051_WriteI( ++SP, ( PC >> 8 ) );\n";
+ print INST_IMP "cpu8051_WriteI( ++SP, ( cpu8051.pc & 0x00FF ) );\n";
+ print INST_IMP "cpu8051_WriteI( ++SP, ( cpu8051.pc >> 8 ) );\n";
print INST_IMP "cpu8051_WriteD( _SP_, SP );\n";
}
# LCALL
if ($insttype[$i] == 7) {
print INST_IMP "unsigned char SP = cpu8051_ReadD( _SP_ );\n";
- print INST_IMP "cpu8051_WriteI( ++SP, ( PC & 0x00FF ) );\n";
- print INST_IMP "cpu8051_WriteI( ++SP, ( PC >> 8 ) );\n";
+ print INST_IMP "cpu8051_WriteI( ++SP, ( cpu8051.pc & 0x00FF ) );\n";
+ print INST_IMP "cpu8051_WriteI( ++SP, ( cpu8051.pc >> 8 ) );\n";
print INST_IMP "cpu8051_WriteD( _SP_, SP );\n";
}
# JB
if ($insttype[$i] == 10) {
- print INST_IMP "if ( destination == 1 ) { PC = source; }\n";
+ print INST_IMP "if ( destination == 1 ) { cpu8051.pc = source; }\n";
}
# RET
if ($insttype[$i] == 11) {
print INST_IMP "unsigned char SP = cpu8051_ReadD( _SP_ );\n";
- print INST_IMP "PC = ( cpu8051_ReadI( SP-- ) << 8 );\n";
- print INST_IMP "PC += cpu8051_ReadI ( SP-- );\n";
+ print INST_IMP "cpu8051.pc = ( cpu8051_ReadI( SP-- ) << 8 );\n";
+ print INST_IMP "cpu8051.pc += cpu8051_ReadI ( SP-- );\n";
print INST_IMP "cpu8051_WriteD( _SP_, SP );\n";
}
# JNB
if ($insttype[$i] == 14) {
- print INST_IMP "if ( destination == 0 ) { PC = source; }\n";
+ print INST_IMP "if ( destination == 0 ) { cpu8051.pc = source; }\n";
}
# RETI
if ($insttype[$i] == 15) {
- print INST_IMP "ActivePriority = -1;\n";
+ print INST_IMP "cpu8051.active_priority = -1;\n";
print INST_IMP "unsigned char SP = cpu8051_ReadD( _SP_ );\n";
- print INST_IMP "PC = ( cpu8051_ReadI( SP-- ) << 8 );\n";
- print INST_IMP "PC += cpu8051_ReadI( SP-- );\n";
+ print INST_IMP "cpu8051.pc = ( cpu8051_ReadI( SP-- ) << 8 );\n";
+ print INST_IMP "cpu8051.pc += cpu8051_ReadI( SP-- );\n";
}
# RLC
# JC
if ($insttype[$i] == 18) {
- print INST_IMP "if ( cpu8051_ReadD( _PSW_ ) > 0x7F) { PC = destination; }\n";
+ print INST_IMP "if ( cpu8051_ReadD( _PSW_ ) > 0x7F) { cpu8051.pc = destination; }\n";
}
# ORL
# JNC
if ($insttype[$i] == 20) {
- print INST_IMP "if ( cpu8051_ReadD( _PSW_ ) < 0x80 ) { PC = destination; }\n";
+ print INST_IMP "if ( cpu8051_ReadD( _PSW_ ) < 0x80 ) { cpu8051.pc = destination; }\n";
}
# ANL
# JZ
if ($insttype[$i] == 22) {
- print INST_IMP "if ( cpu8051_ReadD( _ACC_ ) == 0 ) { PC = destination; }\n";
+ print INST_IMP "if ( cpu8051_ReadD( _ACC_ ) == 0 ) { cpu8051.pc = destination; }\n";
}
# XRL
# JNZ
if ($insttype[$i] == 24) {
- print INST_IMP "if ( cpu8051_ReadD( _ACC_ ) != 0 ) { PC = destination; }\n";
+ print INST_IMP "if ( cpu8051_ReadD( _ACC_ ) != 0 ) { cpu8051.pc = destination; }\n";
}
# JMP
if ($insttype[$i] == 25) {
- print INST_IMP "PC = destination;\n";
+ print INST_IMP "cpu8051.pc = destination;\n";
}
# MOV
# SJMP
if ($insttype[$i] == 27) {
- print INST_IMP "PC = destination;\n";
+ print INST_IMP "cpu8051.pc = destination;\n";
}
# MOVC
# CJNE
if ($insttype[$i] == 34) {
- print INST_IMP "unsigned int reladdr = ( ( memory_read8( PGM_MEM_ID, PC ) + ( ( PC + 1 ) & 0x00FF ) ) & 0x00FF ) + ( ( PC + 1 ) & 0xFF00 );\n";
+ print INST_IMP "unsigned int reladdr = ((char) memory_read8(PGM_MEM_ID, cpu8051.pc)) + (cpu8051.pc + 1);\n";
print INST_IMP "cpu8051_WriteD( _PSW_, ( cpu8051_ReadD( _PSW_ ) & 0x7F ) );\n";
print INST_IMP "if ( destination < source ) cpu8051_WriteD( _PSW_, ( cpu8051_ReadD( _PSW_ ) | 0x80 ) );\n";
- print INST_IMP "if ( destination != source ) PC = reladdr;\n";
+ print INST_IMP "if ( destination != source ) cpu8051.pc = reladdr; else cpu8051.pc++; \n";
}
# PUSH
# DJNZ
if ($insttype[$i] == 42) {
print INST_IMP "destination--;\n";
- print INST_IMP "if ( destination != 0 ) PC = source;\n";
+ print INST_IMP "if ( destination != 0 ) cpu8051.pc = source;\n";
}
# XCHD
if ($instargs[$i*4] > 0) {
$op_destination=$instargs[$i*4+1];
if ($op_destination == 0) { # addr11
- print INST_IMP "PC = ( PC & 0xF800 ) | addr11;\n";
+ print INST_IMP "cpu8051.pc = ( cpu8051.pc & 0xF800 ) | addr11;\n";
}
if ($op_destination == 1) { # addr16
- print INST_IMP "PC = addr16;\n";
+ print INST_IMP "cpu8051.pc = addr16;\n";
}
if ($op_destination == 2) { # A
print INST_IMP "cpu8051_WriteD( _ACC_, destination );\n";
if ($instargs[$i*4] > 1) {
$op_source=$instargs[$i*4+2];
if ($op_source == 0) { # addr11
- print INST_IMP "PC = ( PC & 0xF800 ) | addr11;\n";
+ print INST_IMP "cpu8051.pc = ( cpu8051.pc & 0xF800 ) | addr11;\n";
}
if ($op_source == 1) { # addr16
- print INST_IMP "PC = addr16;\n";
+ print INST_IMP "cpu8051.pc = addr16;\n";
}
if ($op_source == 2) { # A
print INST_IMP "cpu8051_WriteD( _ACC_, source );\n";
# ------------------------------------------------------------------------------
+# Header for instructions_8051.h
+print INST_DEF "/*\n";
+print INST_DEF " * instructions_8051.h\n";
+print INST_DEF " *\n";
+print INST_DEF " * Do not modify this file directly, as it was created by opcode2c.pl\n";
+print INST_DEF " * Any modifications made directly to this file will be lost.\n";
+print INST_DEF " *\n";
+print INST_DEF " * Copyright (C) 1999 Jonathan St-André\n";
+print INST_DEF " * Copyright (C) 1999 Hugo Villeneuve <hugo@hugovil.com>\n";
+print INST_DEF " *\n";
+print INST_DEF " * This program is free software; you can redistribute it and/or modify\n";
+print INST_DEF " * it under the terms of the GNU General Public License as published by\n";
+print INST_DEF " * the Free Software Foundation; either version 2 of the License, or\n";
+print INST_DEF " * (at your option) any later version.\n";
+print INST_DEF " *\n";
+print INST_DEF " * This program is distributed in the hope that it will be useful,\n";
+print INST_DEF " * but WITHOUT ANY WARRANTY; without even the implied warranty of\n";
+print INST_DEF " * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n";
+print INST_DEF " * GNU General Public License for more details.\n";
+print INST_DEF " *\n";
+print INST_DEF " * You should have received a copy of the GNU General Public License\n";
+print INST_DEF " * along with this program; if not, write to the Free Software\n";
+print INST_DEF " * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.\n";
+print INST_DEF "*/\n\n";
-print INST_DEF "/* instructions_8051.h */\n\n\n";
-print INST_DEF "/* Do not modify this file directly, as it was created by opcode2c.pl\n";
-print INST_DEF " * Any modifications made directly to this file will be lost. */\n\n\n";
print INST_DEF "#ifndef INSTRUCTIONS_8051_H\n";
print INST_DEF "#define INSTRUCTIONS_8051_H 1\n\n\n";
-print INST_DEF "#define BANKPSW ( cpu8051_ReadD( _PSW_ ) & 0x18 )\n\n";
-print INST_DEF "typedef int (*OPCODE_FP)( void );\n\n\n";
+print INST_DEF "#define BANKPSW (cpu8051_ReadD(_PSW_) & 0x18)\n\n";
+print INST_DEF "typedef int (*OPCODE_FP)(void);\n\n\n";
for( $i=0; $i<256; $i++ ) {
print INST_DEF "int\n";
- print INST_DEF "cpu8051_OP_$a_opcodehex[$i]( void );\n\n";
+ print INST_DEF "cpu8051_OP_$a_opcodehex[$i](void);\n\n";
}
print INST_DEF "\n";
print INST_DEF "/* Exported variables. */\n";
print INST_DEF "#endif /* INSTRUCTIONS_8051_H */\n";
-
-
-
-
-
-print DISASM_H "\n\n#endif /* DISASM_H */\n";
+print DISASM_H "#endif /* DISASM_H */\n";
close DISASM_H;
close OPCODELST;
close INST_DEF;
close INST_IMP;
-
-
projects / emu8051.git / blobdiff